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run code in 300+ PHP versions simultaneously
<?php $var = 'original value'; $ref =& $var; $hash = ['var' => 'new value']; extract($hash, EXTRACT_REFS); echo 'ref: ', $ref, ' var: ', $var;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant "EXTRACT_REFS" in /in/5eLMn:8 Stack trace: #0 {main} thrown in /in/5eLMn on line 8
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant EXTRACT_REFS - assumed 'EXTRACT_REFS' (this will throw an Error in a future version of PHP) in /in/5eLMn on line 8 Warning: extract() expects parameter 2 to be int, string given in /in/5eLMn on line 8 ref: original value var: original value
Output for 7.2.0 - 7.2.33
Warning: Use of undefined constant EXTRACT_REFS - assumed 'EXTRACT_REFS' (this will throw an Error in a future version of PHP) in /in/5eLMn on line 8 Warning: extract() expects parameter 2 to be integer, string given in /in/5eLMn on line 8 ref: original value var: original value
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
Notice: Use of undefined constant EXTRACT_REFS - assumed 'EXTRACT_REFS' in /in/5eLMn on line 8 Warning: extract() expects parameter 2 to be integer, string given in /in/5eLMn on line 8 ref: original value var: original value
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Use of undefined constant EXTRACT_REFS - assumed 'EXTRACT_REFS' in /in/5eLMn on line 8 Warning: extract() expects parameter 2 to be long, string given in /in/5eLMn on line 8 ref: original value var: original value

preferences:
165.61 ms | 402 KiB | 229 Q